1DKS: Cyclin dependent kinase subunit, type 1

CKSHS1: human cyclin dependent kinase subunit, type 1 in complex with phosphate. Determined by X-ray diffraction at 3.2 Å resolution. Released 8 Mar 1996.

Method
X-ray diffraction
Resolution
3.2 Å
Organism
Homo sapiens
Chains
2
Atoms
1,331
Mol. weight
19.55 kDa
Ligands
PO4
Released
8 Mar 1996

Explore 1DKS in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1DKS contains 6 α-helices and 13 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 2 helices, 5 β-strands

ElementResiduesLengthSheet
β-strand7-821
β-strand1311
β-strand17-2371
α-helix29-313
α-helix40-467
β-strand55-5951
β-strand66-7271
Chain B: 4 helices, 8 β-strands
ElementResiduesLengthSheet
β-strand7-821
β-strand12-1322
β-strand1713
β-strand18-1922
β-strand20-2341
α-helix26-294
α-helix37-393
α-helix40-445
β-strand55-5841
β-strand66-7051
β-strand7213
α-helix73-753

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Cyclin dependent kinase subunit, type 1A, Bprotein79Homo sapiensP61024 (AlphaFold model)
Sequence of entity 1 (A, B), FASTA
>1DKS_1 CYCLIN DEPENDENT KINASE SUBUNIT, TYPE 1 (chains A, B)
MSHKQIYYSDKYDDEEFEYRHVMLPKDIAKLVPKTHLMSESEWRNLGVQQSQGWVHYMIH
EPEPHILLFRRPLPKKPKK

Ligands and cofactors

IDNameFormulaCopies
PO4Phosphate ionO4 P2

Primary citation

Crystal structure of the human cell cycle protein CksHs1: single domain fold with similarity to kinase N-lobe domain. Arvai, A.S., Bourne, Y., Hickey, M.J. et al. J Mol Biol (1995) 249:835-842. DOI 10.1006/jmbi.1995.0341 · PubMed

Other PDB entries of the same protein (UniProt P61024 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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